How do i jump off a Mercedes slk 280?

You can not see the battery simply from opening the hood. But, you can still jump the battery. The positive terminal for the battery is located under a red plastic hatch to the left of the engine. Put the red (+) jumper clamp on this terminal. Then clamp the black (neg) jumper clamp on a bare bolt or piece of metal that is attached to the vehicle. Be careful of the fan blade! Connect the jumpers to the other car. Start the "other car. If possible, have someone "rev" the engine a liittle bit while you (?) fire-up the SLK.